The Inner West is one of Sydney's oldest residential belts — narrow Victorian terraces, semis and workers' cottages packed onto clay-shale, the vast majority built in the 1800s and early 1900s before damp-proof courses were standard. Where a course exists it has usually broken down, clay holds water against the footings, and shared party walls and rendered facades trap moisture. Rising damp and salt-affected lower walls are common right across the area.
The lasting fix is never a render-and-paint that seals the damp in. We diagnose the true source, install a new damp-proof course where the wall needs it, and finish with a breathable, salt-resistant render so the old masonry keeps drying.
The Inner West's Victorian terraces sit on clay-shale with failed or absent damp-proof courses, so ground moisture wicks up through party walls and old brick. It carries salt to the surface, blistering paint, blowing plaster and rotting skirtings — and because terraces share walls, untreated damp can migrate between homes and into the structural masonry, the costliest damage to undo.
The Inner West's terraces and semis sit low on clay with cramped, damp subfloors. We fit subfloor ventilation to dry them.
Victorian terraces here were built before damp-proofing. Our rising damp treatment injects a new chemical DPC to stop the rise.
We strip and re-coat with a breathable salt-resistant plaster system suited to terraces.
Our mould removal clears growth and fixes the moisture feeding it.
We waterproof and tank shared party walls, cellars and wet areas.
Book a free damp inspection for an honest diagnosis.
The Inner West is full of Victorian terraces and workers' cottages on clay-shale, built before modern damp-proofing. Failed or absent damp-proof courses, damp clay footings and shared party walls make rising damp common in Newtown, Marrickville and Balmain.
All of them — including Newtown, Marrickville, Balmain, Leichhardt, Dulwich Hill, Petersham, Stanmore, Ashfield, Annandale, Rozelle, Tempe, Summer Hill. If your suburb is not listed, call us; we cover the whole area.
Yes. Party walls between terraces can carry damp between homes and need treatment that accounts for the shared structure. We diagnose how the moisture is moving and treat your wall with a breathable, salt-resistant finish suited to a terrace.